implode( ' ', $classes ) ]; if ( $anchor ) { $wrapper_args['id'] = sanitize_html_class( $anchor ); } $wrapper_attributes = get_block_wrapper_attributes( $wrapper_args ); $data_attrs = HTML_Helpers::build_data_attrs( $attributes ); // Behaviour flags for view.js. $toc_attrs = ' data-flexa-toc data-levels="' . esc_attr( implode( ',', $level_tags ) ) . '"'; if ( $smooth ) { $toc_attrs .= ' data-smooth data-offset="' . esc_attr( (string) $offset ) . '"'; } if ( $collapsible ) { $toc_attrs .= ' data-collapsible'; } if ( $collapsed ) { $toc_attrs .= ' data-collapsed'; } // Lazy background marker. $background = $attributes['background'] ?? []; $is_lazy_bg = ! empty( $background['lazyLoad'] ) && 'image' === ( $background['type'] ?? 'none' ) && '' !== ( $background['image']['url'] ?? '' ); $lazy_marker = $is_lazy_bg ? ' data-flexa-lazy-bg' : ''; // A chevron toggle icon (static markup — safe to echo). $icon_html = ''; // Header: a collapse toggle when collapsible, otherwise the plain title. $header_html = ''; if ( $collapsible ) { $expanded = $collapsed ? 'false' : 'true'; $title_span = $show_title ? '' . esc_html( $title ) . '' : ''; $header_html = ''; } elseif ( $show_title ) { $header_html = '<' . $title_tag . ' class="flexa-toc__title">' . esc_html( $title ) . ''; } // Body: an empty list view.js fills, plus a note shown when no headings match. $body_html = '
'; $body_html .= ''; $body_html .= ''; $body_html .= '
'; printf( '<%1$s %2$s%3$s%4$s%5$s>%6$s%7$s', esc_html( $html_tag ), $wrapper_attributes, // phpcs:ignore WordPress.Security.EscapeOutput.OutputNotEscaped -- built via get_block_wrapper_attributes. $data_attrs, // phpcs:ignore WordPress.Security.EscapeOutput.OutputNotEscaped -- keys sanitized, values escaped in helper. $toc_attrs, // phpcs:ignore WordPress.Security.EscapeOutput.OutputNotEscaped -- static literals + esc_attr'd values. $lazy_marker, // phpcs:ignore WordPress.Security.EscapeOutput.OutputNotEscaped -- static literal. $header_html, // phpcs:ignore WordPress.Security.EscapeOutput.OutputNotEscaped -- title esc_html'd, tag whitelisted, icon static. $body_html // phpcs:ignore WordPress.Security.EscapeOutput.OutputNotEscaped -- emptyText esc_html'd, rest static. );